Like its hatchback Grand Sport cousin, Vauxhall claims the new car is up to 200kg lighter than the outgoing model, thanks to extensive use of lightweight materials. More crucially, it’s larger inside for passengers and their luggage.

Still want that 5-series/A6/E-class?

If you’re not badge conscious, the case for this car is compelling in terms of metal-for-money. Like its Skoda rival, there's no disguising its size – it’s longer than before at 4986mm, which puts it right in the middle of the established executive challengers, such as the new BMW 5-series Touring and Mercedes-Benz E-Class estate.

Another big growth point is in its wheelbase, which is now 2829mm. The real benefit from this growth is inside. With its maximum luggage capacity of 1638 litres and optional 40/20/40-split rear seats, it has clearly been designed with workhorse duties in mind.

Passengers do well, too – headroom has increased by 31mm, shoulder-room by 25mm and space for the hips by 27mm. The optional panoramic sunroof will no doubt help with the feeling of airiness for rear-seat passengers.

It also gets next-generation 'IntelliLux' LED matrix headlights, front- and rear-seat heating and a toasted windscreen, which should keep reps happy. The Sports Tourer's infotainment and connectivity systems are built around its IntelliLink and OnStar packages. That means you'll get full Apple CarPlay and Android Auto compatability – the functionality buyers are now looking for.

It is also the first Vauxhall with an active aluminium bonnet, improving pedestrian protection considerably.

Full price and specification details will be announced nearer the car's launch at the 2017 Geneva motor show.